Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid

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GHANBARI, Shahin ;JAVAHERDEH, Kourosh .
Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 65, n.9, p. 503-514, september 2019. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/>. Date accessed: 14 oct. 2019. 
doi:http://dx.doi.org/10.5545/sv-jme.2019.6035.
Ghanbari, S., & Javaherdeh, K.
(2019).
Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid.
Strojniški vestnik - Journal of Mechanical Engineering, 65(9), 503-514.
doi:http://dx.doi.org/10.5545/sv-jme.2019.6035
@article{sv-jmesv-jme.2019.6035,
	author = {Shahin  Ghanbari and Kourosh  Javaherdeh},
	title = {Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {65},
	number = {9},
	year = {2019},
	keywords = {nanoporous graphene; nanofluid; annular tube; thermal performance factor; pressure drop},
	abstract = {In the current research work, turbulence convective heat transfer coefficient enhancement and pressure drop of nanoporous graphene non-Newtonian nanofluid were investigated in an annular tube in the developing region. The nanofluid was prepared by using nanoporous graphene in different concentrations of 0.05 wt.%, 0.1 wt.%, and 0.2 wt.% in an aqueous solution of carboxyl methyl cellulose (CMC). All thermophysical and rheological characteristics were evaluated, and pseudo-plastic (shear-thinning) rheological behaviour was observed for all samples. The results revealed that adding 0.2 wt.% nanoporous graphene to the base fluid leads to 12.4 % and 39.4 % enhancement of thermal conductivity and heat transfer coefficient, respectively. This enhancement trend was almost linear for the concentrations lower than 0.1 wt.% after which the enhancement rate was reduced significantly. Moreover, the results showed that when 0.05 and 0.1 wt.% nanoporous graphene was adopted, the thermal performance factor (TPF) was increased by 8.7 % and 16.7 %, respectively, and doubling the nanoparticle concentration from 0.1 wt.% to 0.2 wt.% could not augment the TPF; however, considering the assessed pressure drop, it also decreased it by 2.5 %. The increase of the Reynolds number led to an increase in heat transfer coefficient of all samples.},
	issn = {0039-2480},	pages = {503-514},	doi = {10.5545/sv-jme.2019.6035},
	url = {https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/}
}
Ghanbari, S.,Javaherdeh, K.
2019 September 65. Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 65:9
%A Ghanbari, Shahin 
%A Javaherdeh, Kourosh 
%D 2019
%T Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid
%B 2019
%9 nanoporous graphene; nanofluid; annular tube; thermal performance factor; pressure drop
%! Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid
%K nanoporous graphene; nanofluid; annular tube; thermal performance factor; pressure drop
%X In the current research work, turbulence convective heat transfer coefficient enhancement and pressure drop of nanoporous graphene non-Newtonian nanofluid were investigated in an annular tube in the developing region. The nanofluid was prepared by using nanoporous graphene in different concentrations of 0.05 wt.%, 0.1 wt.%, and 0.2 wt.% in an aqueous solution of carboxyl methyl cellulose (CMC). All thermophysical and rheological characteristics were evaluated, and pseudo-plastic (shear-thinning) rheological behaviour was observed for all samples. The results revealed that adding 0.2 wt.% nanoporous graphene to the base fluid leads to 12.4 % and 39.4 % enhancement of thermal conductivity and heat transfer coefficient, respectively. This enhancement trend was almost linear for the concentrations lower than 0.1 wt.% after which the enhancement rate was reduced significantly. Moreover, the results showed that when 0.05 and 0.1 wt.% nanoporous graphene was adopted, the thermal performance factor (TPF) was increased by 8.7 % and 16.7 %, respectively, and doubling the nanoparticle concentration from 0.1 wt.% to 0.2 wt.% could not augment the TPF; however, considering the assessed pressure drop, it also decreased it by 2.5 %. The increase of the Reynolds number led to an increase in heat transfer coefficient of all samples.
%U https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/
%0 Journal Article
%R 10.5545/sv-jme.2019.6035
%& 503
%P 12
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 65
%N 9
%@ 0039-2480
%8 2019-09-10
%7 2019-09-10
Ghanbari, Shahin, & Kourosh  Javaherdeh.
"Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid." Strojniški vestnik - Journal of Mechanical Engineering [Online], 65.9 (2019): 503-514. Web.  14 Oct. 2019
TY  - JOUR
AU  - Ghanbari, Shahin 
AU  - Javaherdeh, Kourosh 
PY  - 2019
TI  - Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2019.6035
KW  - nanoporous graphene; nanofluid; annular tube; thermal performance factor; pressure drop
N2  - In the current research work, turbulence convective heat transfer coefficient enhancement and pressure drop of nanoporous graphene non-Newtonian nanofluid were investigated in an annular tube in the developing region. The nanofluid was prepared by using nanoporous graphene in different concentrations of 0.05 wt.%, 0.1 wt.%, and 0.2 wt.% in an aqueous solution of carboxyl methyl cellulose (CMC). All thermophysical and rheological characteristics were evaluated, and pseudo-plastic (shear-thinning) rheological behaviour was observed for all samples. The results revealed that adding 0.2 wt.% nanoporous graphene to the base fluid leads to 12.4 % and 39.4 % enhancement of thermal conductivity and heat transfer coefficient, respectively. This enhancement trend was almost linear for the concentrations lower than 0.1 wt.% after which the enhancement rate was reduced significantly. Moreover, the results showed that when 0.05 and 0.1 wt.% nanoporous graphene was adopted, the thermal performance factor (TPF) was increased by 8.7 % and 16.7 %, respectively, and doubling the nanoparticle concentration from 0.1 wt.% to 0.2 wt.% could not augment the TPF; however, considering the assessed pressure drop, it also decreased it by 2.5 %. The increase of the Reynolds number led to an increase in heat transfer coefficient of all samples.
UR  - https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/
@article{{sv-jme}{sv-jme.2019.6035},
	author = {Ghanbari, S., Javaherdeh, K.},
	title = {Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {65},
	number = {9},
	year = {2019},
	doi = {10.5545/sv-jme.2019.6035},
	url = {https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/}
}
TY  - JOUR
AU  - Ghanbari, Shahin 
AU  - Javaherdeh, Kourosh 
PY  - 2019/09/10
TI  - Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 65, No 9 (2019): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2019.6035
KW  - nanoporous graphene, nanofluid, annular tube, thermal performance factor, pressure drop
N2  - In the current research work, turbulence convective heat transfer coefficient enhancement and pressure drop of nanoporous graphene non-Newtonian nanofluid were investigated in an annular tube in the developing region. The nanofluid was prepared by using nanoporous graphene in different concentrations of 0.05 wt.%, 0.1 wt.%, and 0.2 wt.% in an aqueous solution of carboxyl methyl cellulose (CMC). All thermophysical and rheological characteristics were evaluated, and pseudo-plastic (shear-thinning) rheological behaviour was observed for all samples. The results revealed that adding 0.2 wt.% nanoporous graphene to the base fluid leads to 12.4 % and 39.4 % enhancement of thermal conductivity and heat transfer coefficient, respectively. This enhancement trend was almost linear for the concentrations lower than 0.1 wt.% after which the enhancement rate was reduced significantly. Moreover, the results showed that when 0.05 and 0.1 wt.% nanoporous graphene was adopted, the thermal performance factor (TPF) was increased by 8.7 % and 16.7 %, respectively, and doubling the nanoparticle concentration from 0.1 wt.% to 0.2 wt.% could not augment the TPF; however, considering the assessed pressure drop, it also decreased it by 2.5 %. The increase of the Reynolds number led to an increase in heat transfer coefficient of all samples.
UR  - https://www.sv-jme.eu/article/experimental-assessment-of-turbulence-convective-heat-transfer-and-pressure-drop-in-annuli-using-nanoporous-graphene-non-newtonian-nanofluid/
Ghanbari, Shahin, AND Javaherdeh, Kourosh.
"Experimental Assessment of Turbulence Convective Heat Transfer and Pressure Drop in Annuli using Nanoporous Graphene non-Newtonian Nanofluid" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 65 Number 9 (10 September 2019)

Authors

Affiliations

  • University of Guilan, Faculty of Mechanical Engineering, Iran
  • University of Guilan, Faculty of Mechanical Engineering, Iran

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 65(2019)9, 503-514

10.5545/sv-jme.2019.6035

In the current research work, turbulence convective heat transfer coefficient enhancement and pressure drop of nanoporous graphene non-Newtonian nanofluid were investigated in an annular tube in the developing region. The nanofluid was prepared by using nanoporous graphene in different concentrations of 0.05 wt.%, 0.1 wt.%, and 0.2 wt.% in an aqueous solution of carboxyl methyl cellulose (CMC). All thermophysical and rheological characteristics were evaluated, and pseudo-plastic (shear-thinning) rheological behaviour was observed for all samples. The results revealed that adding 0.2 wt.% nanoporous graphene to the base fluid leads to 12.4 % and 39.4 % enhancement of thermal conductivity and heat transfer coefficient, respectively. This enhancement trend was almost linear for the concentrations lower than 0.1 wt.% after which the enhancement rate was reduced significantly. Moreover, the results showed that when 0.05 and 0.1 wt.% nanoporous graphene was adopted, the thermal performance factor (TPF) was increased by 8.7 % and 16.7 %, respectively, and doubling the nanoparticle concentration from 0.1 wt.% to 0.2 wt.% could not augment the TPF; however, considering the assessed pressure drop, it also decreased it by 2.5 %. The increase of the Reynolds number led to an increase in heat transfer coefficient of all samples.

nanoporous graphene; nanofluid; annular tube; thermal performance factor; pressure drop